Blue Sea Systems Waterproof In-Line ATO/ATC Fuse Holder, 30A Max, 12 AWG Pigtails

Overview

The Blue Sea Systems 5065 is a waterproof in-line fuse holder for ATO/ATC blade fuses, with 12 AWG pigtails, a 30A maximum fuse size, and a 32V DC rating. It is a straightforward way to add fuse protection to a single circuit where wiring may be exposed to spray, damp lockers, or routine washdowns.

This holder fits the kind of boat wiring job where a full fuse block is not necessary and a protected fuse point needs to sit directly in the wire run. The fuse is sold separately, which lets you match the fuse value to the circuit load and conductor size instead of being locked into a preset amperage.

For marine refits and accessory additions, this style works well when you want to protect one branch circuit close to the power source and still keep the fuse easy to service later.

Key features

• Accepts standard ATO/ATC blade fuses for single in-line circuit protection
• Waterproof housing helps shield the fuse in wet or splash-prone wiring areas
• Supplied with 12 AWG pigtails for direct splicing into the circuit
• Rated up to 32V DC for many common 12V and 24V boat systems
• Supports fuse sizes up to 30A
• Fuse is not included, so the circuit can be matched to the correct amperage

Compatibility and fit

This holder is for ATO/ATC blade fuses only. It is a good match for smaller DC branch circuits where an in-line fuse makes more sense than adding another panel or fuse block. It is not the right format for MAXI, ANL, or glass-style fuses.

On board, it suits accessory feeds such as electronics, lighting, pumps, and other protected circuits that stay within the holder's current and voltage limits. Before installation, the chosen fuse value should match both the equipment load and the wire size in the circuit.

Installation and setup

The pre-attached 12 AWG leads keep installation simple when adding or replacing an in-line fuse point in an existing harness. This can be useful behind the helm, inside a console, under a berth, or in a locker where space is limited and moisture protection still matters.

Mount it where the fuse can be reached without pulling apart the harness, and leave enough wire slack to open the holder for inspection or fuse changes. That makes troubleshooting easier when you are working in tight spaces on board.

Use on board

This is a sensible fit for boat owners, riggers, and service techs who are adding one protected circuit at a time or repairing a damaged holder in an existing run. It also suits small upgrades where keeping the fuse close to the source and away from an exposed connection matters more than expanding the main distribution panel.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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